The Internet is growing fast and is becoming the support for thousands to billions of services prosumers. In parallel, business entities needs to collaborate more, are using Internet as a communication layer and are starting cloud intiatives to expose and consume IT services into public and private clouds.The goal of this presentation/talk is to introduce state of the art solution and to propose OW2-based Open Source response allowing entities to develop and extend their business easily in a cloud-aware way. The approach we are proposing is composed of three major modules : A cloud-aware/federated service bus, a service governance tool and an online Collborative Business Process Editor.The cloud service bus extends the OW2-Petals ESB by enabling service exposition and consumption between service farms by using OW2-ProActive as the framework to build a federated communication layer. Once communication links are established between parties using the cloud middleware, services visibility can be expressed using the OW2-Petals Master governance solution and automatically exposed to defined partners by the service bus. Finally, an online business processes editor is deployed in the cloud and fully connected to the infrastrucutre in order to provide a fully collaborative processes creation using BPMN standards.